public List <TField> Distinct <TField>(Expression <Func <TEntity, TField> > fieldExp, FilterDefinition <TEntity> filter, ReadPreference readPreference = null)
{
if (filter == null)
{
filter = Filter.Empty;
}
return(IAsyncCursorExtensions.ToList <TField>(IMongoCollectionExtensions.Distinct <TEntity, TField>(GetCollection(readPreference), fieldExp, filter, null)));
}
public List <TField> Distinct <TField>(FieldDefinition <TEntity, TField> field, FilterDefinition <TEntity> filter, ReadPreference readPreference = null)
{
if (filter == null)
{
filter = Filter.Empty;
}
return(IAsyncCursorExtensions.ToList(GetCollection(readPreference).Distinct(field, filter, null)));
}
public async Task <List <TEntity> > GetListAsync(FilterDefinition <TEntity> filter, ProjectionDefinition <TEntity, TEntity> projection = null, SortDefinition <TEntity> sort = null, int limit = 0, int skip = 0, BsonValue hint = null, ReadPreference readPreference = null)
{
if (filter == null)
{
filter = Filter.Empty;
}
FindOptions <TEntity, TEntity> options = CreateFindOptions(projection, sort, limit, skip, hint);
return(await IAsyncCursorExtensions.ToListAsync(await GetCollection(readPreference).FindAsync(filter, options)));
}
public async Task <TEntity> GetAsync(FilterDefinition <TEntity> filter, ProjectionDefinition <TEntity, TEntity> projection = null, SortDefinition <TEntity> sort = null, BsonValue hint = null, ReadPreference readPreference = null)
{
if (filter == null)
{
filter = Filter.Empty;
}
FindOptions <TEntity, TEntity> options = CreateFindOptions(projection, sort, 1, 0, hint);
return(await IAsyncCursorExtensions.FirstOrDefaultAsync(await GetCollection(readPreference).FindAsync(filter, options)));
}
/// <summary>
/// 根据条件返回评论列表（不分页）
/// </summary>
/// <param name="query">查询条件</param>
/// <returns></returns>
public async Task <List <UserComm> > QueryUserCommListAsync(UserCommQuery query)
{
try
{
if (query == null)
{
_log.Error("query is not null");
return(null);
}
var express = BuildQuery(query);
var ret = await _mongoRespository.QueryListAsync(express);
var resultList = await IAsyncCursorExtensions.ToListAsync(ret);
return(resultList);
}
catch (Exception ex)
{
_log.Error("QueryUserCommListAsync method error:" + ex);
throw;
}
}
